diff --git a/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets b/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
index 8d01d70bb109bb7c490349105a72400327cad8cb..5760d031fe350d705b7d064399bc85b8ed076504 100644
--- a/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
+++ b/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
@@ -328,7 +328,7 @@ export default {
     let html
     if (base64regex.test(noteData.content_text)) {
       let base64 = new util.Base64Helper
-      html = base64.decodeSync(noteData.content_text)
+      html = base64.decodeSync(noteData.content_text).toString()
     } else {
       html = noteData.content_text
     }
diff --git a/product/default/src/main/ets/MainAbility/MainAbility.ts b/product/default/src/main/ets/MainAbility/MainAbility.ts
index 2aa4a1d85813f1817e3f4db55bd880ded549a9e0..a3b14aad94f5f8d0453ce0bdc05ef414844b1d7f 100644
--- a/product/default/src/main/ets/MainAbility/MainAbility.ts
+++ b/product/default/src/main/ets/MainAbility/MainAbility.ts
@@ -172,7 +172,7 @@ export default class MainAbility extends UIAbility {
         let realHtml
         if (base64regex.test(html)) {
             let base64 = new util.Base64Helper
-            realHtml = base64.decodeSync(html)
+            realHtml = base64.decodeSync(html).toString()
         } else {
             realHtml = html;
         }